Sintering resistance of Pd single atoms on steam-modified ceria: deciphering the role of hydroxyl groups
2023-09-22
发表期刊JOURNAL OF MATERIALS CHEMISTRY A (IF:10.7[JCR-2023],10.8[5-Year])
ISSN2050-7488
EISSN2050-7496
卷号11期号:39页码:21285-21292
发表状态已发表
DOI10.1039/d3ta04200f
摘要

It remains a significant challenge to achieve great stability of single-atom catalysts while maintaining high activity. On the basis of observing the sintering resistance up to 800 °C of Pd single atoms dispersed on OH-modified CeO2 and their sustainable activity for CO oxidation at low temperature, the relationship between the unique structure and catalytic performance of the single-atom catalyst was deeply investigated. The structural characterization revealed that the OH groups on the ceria can anchor the Pd-loaded sites and promote the formation of a stable OH-Pd1O4 doped structure, leading to its high-temperature stability. Moreover, low-temperature activity retention was attributed to the multiple active palladium species (Pd2+, Pdδ+, and Pd0). This study highlights the crucial role of structural regulation in determining catalyst performance, and provides guidance for the rational design of high-performance single-atom catalysts.

关键词Atoms Catalyst activity Catalytic oxidation Palladium Palladium compounds Sintering Temperature Catalytic performance Good stability High activity Hydroxyl groups Lows-temperatures OH - Single-atoms Sintering resistance Structure performance ]+ catalyst
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收录类别SCI ; EI
语种英语
资助项目Center of high-resolution Electron Microscopy (ChEM) of the SPST at ShanghaiTech[EM02161943] ; National Natural Science Foundation of China[11227902]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:001068253600001
出版者ROYAL SOC CHEMISTRY
EI入藏号20234014838381
EI主题词Cerium oxide
EI分类号451.2 Air Pollution Control ; 547.1 Precious Metals ; 641.1 Thermodynamics ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds ; 931.3 Atomic and Molecular Physics
原始文献类型Journal article (JA)
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/329019
专题物质科学与技术学院_博士生
大科学中心_PI研究组_刘志组
物质科学与技术学院_PI研究组_章跃标组
物质科学与技术学院_特聘教授组_杨培东
物质科学与技术学院_PI研究组_卓联洋组
通讯作者Liu, Zhi; Chou, Lien-Yang
作者单位
1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
2.ShanghaiTech Univ, Ctr Transformat Sci, Shanghai 201210, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
4.Natl Tsing Hua Univ, Dept Chem, Hsinchu 300044, Taiwan
5.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan
6.Boston Coll, Dept Chem, Merkert Chem, Chestnut Hill, MA 02467 USA
7.ShanghaiTech Univ, Shanghai High Repetit Rate XFEL & Extreme Light F, Shanghai 201210, Peoples R China
第一作者单位物质科学与技术学院
通讯作者单位物质科学与技术学院;  上海科技大学
第一作者的第一单位物质科学与技术学院
推荐引用方式
GB/T 7714
An, Yuanyuan,Chen, Sheng-Yu,Zhou, Li,et al. Sintering resistance of Pd single atoms on steam-modified ceria: deciphering the role of hydroxyl groups[J]. JOURNAL OF MATERIALS CHEMISTRY A,2023,11(39):21285-21292.
APA An, Yuanyuan.,Chen, Sheng-Yu.,Zhou, Li.,Wang, Beibei.,Hao, Guoxiu.,...&Chou, Lien-Yang.(2023).Sintering resistance of Pd single atoms on steam-modified ceria: deciphering the role of hydroxyl groups.JOURNAL OF MATERIALS CHEMISTRY A,11(39),21285-21292.
MLA An, Yuanyuan,et al."Sintering resistance of Pd single atoms on steam-modified ceria: deciphering the role of hydroxyl groups".JOURNAL OF MATERIALS CHEMISTRY A 11.39(2023):21285-21292.
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